I have an eight year old son who has supraventricular tachycardia and Wolff Parkinson White syndrome, he takes 50 mg of Atenolol daily 25 mg in the morning and 25 mg at bedtime. Typically this keeps his heart under control, but tonight something happened that has never happened before. He told me he wasn't feeling well so I took his temperature and it was 96.1 and I also checked his heart rate from checking on his chest and his heart rate was over 170. I did vagal Maneuvers and got his heart rate back in rhythm but I'm just curious if there is a correlation between a lower temperature and his heart rate because I have seen when he's running a fever his heart rate will Elevate tremendously?